Safety Helmet Visor Setting Mechanism

ABSTRACT

The present invention is to provided a safety helmet visor setting mechanism, comprising: a shell, having an indent at each side, where one side is provided with a long opening behind the indent; an anchored unit, designed to fit in the long opening of the shell, having two grooves; a hold plate, fixed in the anchored unit, having two push chunks placed in the two grooves respectively; a link bar, having its bottom end fixed in the anchored unit and jostled with the hold plate, and can be moved by the drive of the push chunk; a cover, capping the anchored unit and jostling with the link bar and the hold plate for a lockup; a first visor joint, positioned inside the shell in one side, where its bottom end is in pinned joint with the top end of the link bar, and its top end is provided with a cave; a second visor joint, positioned inside the shell in the other side, having a springy slice, which forms an accommodation space with the shell; and a visor, having a clasp slice at each side, which penetrates the caves and the accommodation spaces of both the first visor joint and the second visor joint for accomplishing an assembly; by pressing the push chunk of the hold plate, and lifting or lowering the link bar for an angle, which simultaneously drives the first visor joint for the angle, and the visor is then pulled in place or pushed upward.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to safety helmet visor setting mechanisms,more particularly, to one that features easy in lifting the visor andhandy for the assembly or disassembly.

2. Description of the Prior Art

The general safety helmet protective lens is categorized into: awindshield visor which is fixed outside the shell, and a sunshade visorwhich is fixed inside the shell; where the latter is installed insidethe shell and located between the shell and the Styrofoam inner helmet.Once the visor is damaged for a replacement, it has to first unload thehelmet liner fixed in the inner helmet, and then discharge the innerhelmet, which is then ready to remove the visor for the replacement. Thereloading is reversing the whole procedure which is troublesome.Moreover, the installation of the helmet liner involves specializedskills and practice, and the appropriateness of the installation affectsconsiderably the fit and comfort of the head of the user, which maysubstantially distract the user, and it absolutely calls for greatimprovement. The applicant of this invention realized the situation andinstructed the inventor to push hardly ahead with the research anddesign, and eventually gave birth to the present invention.

SUMMARY OF THE INVENTION

The main object of the present invention is to provide a safety helmetvisor setting mechanism which is easy in lifting the visor.

The other object of the present invention is to provide a safety helmetvisor setting mechanism which is handy for the assembly or disassemblyof the visor, which proves to have greatly improved the drawbacks of theprior art.

To accomplish the foregoing objects, the present invention comprises: ashell, having an indent at each side, where one side is provided with along opening behind the indent; an anchored unit, designed to fit in thelong opening of the shell, having two grooves; a hold plate, fixed inthe anchored unit, having two push chunks placed in the two groovesrespectively; a link bar, having its bottom end fixed in the anchoredunit and jostled with the hold plate, and can be moved by the drive ofthe push chunk; a cover, capping the anchored unit and jostling with thelink bar and the hold plate for a lockup; a first visor joint,positioned inside the shell in one side, where its bottom end is inpinned joint with the top end of the link bar, and its top end isprovided with a cave; a second visor joint, positioned inside the shellin the other side, having a springy slice, which forms an accommodationspace with the shell; and a visor, having a clasp slice at each side,which penetrates the caves and the accommodation spaces of both thefirst visor joint and the second visor joint for accomplishing anassembly; by pressing the push chunk of the hold plate, and lifting orlowering the link bar for an angle, which simultaneously drives thefirst visor joint for the angle, and the visor is then pulled in placeor pushed upward.

The other object of the present invention comprises: a first visorjoint, positioned inside the shell in one side, where its bottom end isin pinned joint with the top end of the link bar, and its top end isprovided with a cave; a second visor joint, positioned inside the shellin the other side, having a springy slice, to form an accommodationspace with the shell; and a visor, having a clasp slice at each side, topenetrate the caves and the accommodation spaces of both the first visorjoint and the second visor joint for accomplishing an assembly, andprompt in the loading and unloading of the visor;

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a three-dimensional exploded view of the right side portion ofthe present invention;

FIG. 2 is a schematic side view of the right side portion of the presentinvention;

FIG. 3 is a sectional diagram viewing from A-A in FIG. 2;

FIG. 4 is a sectional diagram viewing from B-B in FIG. 2;

FIG. 5 is a sectional diagram viewing from C-C in FIG. 2;

FIG. 6 is a three-dimensional exploded view of the left side portion andthe visor of the present invention;

FIG. 7 is an assemble exploded view of the left side portion and thevisor of the present invention;

FIG. 8 is a schematic side view of the status of the use of the visor ofthe present invention;

FIG. 9 is a sectional diagram viewing from D-D in FIG. 8;

FIG. 10 is a schematic side view of the lifting of the visor of thepresent invention;

FIG. 11 is a schematic side view of the lowering of the visor of thepresent invention;

DETAILED DESCRIPTION OF THE INVENTION

To achieve the foregoing objects of the present invention, thetechniques adopted and the achievable function are detailed describedwith reference to the following preferred exemplified embodiment and theaccompanying drawings, which is expected to help the honorable Examinerin comprehending the contents of the present invention thoroughly.

Referring to FIGS. 1-5, the present invention comprises: a shell 1,having an indent 11 at each of both sides, where the indent 11 isprovided with necessary and adequate number of through holes and screwholes, and in the right side the indent 11 is provided with a longopening 12 at its bottom; an anchored unit 2, placed in the long opening12 of the shell, and jostled with the shell 1, where the unit within theshell 1 is made up of a rod 21 located in the middle, two grooves 22 &23 located in the opposite sides of the rod 21 respectively, and twogaps 24 & 25 are located in the same side of the corresponding grooves22 & 23 respectively; a hold plate 20, fixed in the anchored unit 2,having a push chunk 26, 27 at each side and the two are placed in thetwo grooves 22 & 23 respectively; where the push chunks 26 & 27 have ahook 28, 29 respectively at one end that are seized in the gaps 24 & 25;a link bar 3, having a long trough 31 at its top end, while its bottomend is lodged in the anchored unit 2 and jostled with the hold plate 20,and its two side bottoms each has a prop chunk 32, 33 located at the topof corresponding push chunks 26 & 27, which are connected to the hooks28 & 29 respectively; a cover 30, capping the anchored unit 2 andfastening to each other by a screw 34, which can simultaneously jostlewith the link bar 3 and the hold plate 20 for a lockup; a first visorjoint 4, positioned inside the shell 1, has a plug slice 41 at itsbottom inside, which is in pinned joint with the long trough 31 on thetop of the link bar 3, and has a hole 42 at its middle to cap the shaftcover 43. Through the fastening by a push cover 44 and a screw 46, thevisor joint 4 is being placed in its position, and the visor joint 4 andthe link bar 3 are able to rotate an angle around an axis, the shaft ofthe shaft cover 43, where the shaft cover 43 has a protruded shaft whichpenetrates the shell 1 from outside. The push cover 44 lays on the topof the visor joint 4, holds the shaft cover 43, and fastens with theshaft cover 43 by the penetration of the screw 46, where it has a guidepole 45 in each side; the first visor joint 4 has a cave 47 at its topinside, and the cave 47 again has a bar 48 at its top inside to form anentrance of the cave 47. The first visor joint 4 has one arced springysliding track 49 at each side of its middle portion, for the slidingmovement of the guide pole 45, and also acts as the limiter for therotational movement of the first visor joint 4, that is, the limiter forthe lifting and lowering of the visor 5; and a visor 5, referring toFIG. 6, shaping an arced hollow, has a clasp slice 51 at its right end,and the clasp slice 51 has a protruded bar 52 at its outer side. Oncethe clasp slice 51 is inserted into the cave 47 of the joint, and theprotruded bar 52 is set to jostle against the inner side of the bar 48,the right side of the visor 5 and the first visor joint 4 are joinedtogether as shown in FIG. 5; the left side of the visor 5 is providedwith a clasp slice 53, and the clasp slice 53 has a curved or an arcbulge 54 at its outer side.

A second visor joint 6, positioned inside the shell 1 at the left side,referring to FIGS. 6 & 7, and fastened by a mount cover 61 and a screw62, having a springy slice 63, where a distance between the springyslice 63 and the shell 1, which forms an accommodation space, and themount cover 61 is located in the accommodation space and is providedwith a cave 64. Once the clasp slice 53 is inserted into theaccommodation space, and the bulge 54 is lodged in the cave 64, the leftside of the visor 5 and the second visor joint 6 are joined together.

According to the aforementioned structural combination, the visor 5 hasits both ends join the first and the second visor joint 4 & 6, shown inFIGS. 5 & 7; once not in use, the visor 5 is lifted above and hided inthe shell 1, as shown in FIG. 2, at this moment, the first visor joint 4is in up-lifted, and the push chunk 26 on the top end of the hold plate20 was pressed to immerge in the groove 22 of the anchored unit 2, whilethe hook 28 is located below the prop chunk 32, and the push chunk 27 onthe bottom end of the hold plate 20 stands convexly in the groove 23 ofthe anchored unit 2, while the hook 29 is located above the prop chunk33, shown in FIGS. 3 & 10. On the contrary, if the push chunk 27 ispressed (or pull down the visor 5 directly), through the hook 29 pushingthe prop chunk 33 to simultaneously drive the link bar 3 for swingingupward an angle, and through the link bar 3 driving the first visorjoint 4 to swing downward an angle with the shaft cover acting as theaxis, which then can drive the visor 5 to move downward, and locates atthe window 14 in the front of the shell 1, for the use of sunshade, asshown in FIG. 8; at this moment, the first visor joint 4 appears to beslightly horizontal, where the push chunk 27 at the bottom of the holdplate 20 was pressed to immerge in the groove 23 of the anchored unit 2,and the hook 29 is located below the prop chunk 33, while the push chunk26 on the top end of the hold plate 20 stands convexly in the groove 22of the anchored unit 2, and the hook 28 is located above the prop chunk32, shown in FIGS. 9 & 11.

For the lifting or lowering of the visor 5 described in the aforesaid,the first visor joint 4 has its hole 42 encircle the shaft cover 43 andtakes the protruded shaft of the shaft cover 43 as the axis for therotation, while the second visor joint 6 rotates with respect to theaxle made by the bulge 54 and the cave 64.

To strip the visor 5, the procedure starts by lowering the visor 5 downfirst, shown in FIG. 8, followed by holding the middle portion of thevisor 5 by hand, and a slight pull outward is enough to dismount theclasp slice 51 at the right side of the visor 5 from the cave 47 of thefirst visor joint 4, and to dismount the clasp slice 53 in the left sideof the visor 5 from the accommodation space between the second visorjoint 6 and the shell 1, as the arrow heads shown in FIGS. 5, 7 & 8;reversely, the assembly demands firstly inserting the clasp slice 53 ofthe visor 5 in its left side into the accommodation space between thesecond visor joint 6 and the shell 1, and lodging the bulge 54 into thegroove 13, shown in FIG. 7; then insert the clasp slice 51 in the rightside of the visor 5 into the cave 47 of the first visor joint 4, andjostle the protruded bar 52 against the inner side of the bar 48, shownin FIG. 5; the assembly of the visor 5 is then accomplished, and it isready for lifting or lowering the visor 5, as shown in FIGS. 2 & 8.

From the description in the above, the present invention features atleast the following advantages and functions, which is much creativethan the prior art.

-   -   1. The assembly or disassembly of the visor 5 is not only easy        and prompt but free of stripping or installing the helmet liner        and needless of any tools.    -   2. The lifting or lowering of the visor 5 is not only easy and        prompt but economical of effort.

It's worth to lay particular stress on the traits and spirit of thedesign of the helmet visor setting mechanism of the present invention.Aside from the inclusion of the fixed setting, comprising: anchored unit2, the hold plate 20, the link bar 3, the first visor joint 4 and thesecond visor joint 6, the present invention also comprises an assembledstructure that is made up of the clasp slices 51 & 53 in both sides ofthe visor 5 and the first and the second visor joints 4 & 6. Therefore,any variations of equivalent structure that make use of the techniquesand design spirit of the present invention come within the range of theclaims of the present invention.

To sum up, the disclosed concrete structure of the exemplifiedembodiment of the present invention is not only unknown to the priorart, but surely can accomplish the expected objective and function,which is construed as absolutely novel and creativeness that iscompliant to the requirements of patent law, and a patent applicationfor the invention is then filed.

1. A safety helmet visor setting mechanism, comprising: a.) a shell,having an indent at each of two sides, where one side is provided with along opening behind the indent; b.) an anchored unit, located in thelong opening of said shell, having two grooves; c.) a hold plate, fixedin said anchored unit, having two push chunks placed in the two groovesrespectively; d.) a link bar, having its bottom end fixed in saidanchored unit and jostled with said hold plate, and being able to bemoved by the drive of the push chunk; e.) a cover, capping said anchoredunit and jostling with said link bar and hold plate for a lockup; f.) afirst visor joint, positioned inside said shell in one side, where itsbottom end is in pinned joint with the top end of said link bar; g.) asecond visor joint, positioned inside said shell in the other side; h.)a visor, having a clasp slice at each of two sides, which penetratessaid first visor joint and second visor joint for accomplishing theassembly; wherein the push chunk of said hold plate is once beingpressed, the moving of said link bar for an angle, which simultaneouslydrives said first visor joint for the angle, and said visor being thenpulled in place or pushed upward.
 2. A safety helmet visor settingmechanism as in claim 1 wherein said anchored unit is provided with arod at its middle portion for the fastening with said hold plate, linkbar and cover.
 3. A safety helmet visor setting mechanism as in claim 1wherein the push chunk of said hold plate is provided with a hook, andsaid link bar being provided with a corresponding prop chunk at itsbottom inside.
 4. A safety helmet visor setting mechanism as in claim 1wherein said link bar is provided with a long trough at its top end, andsaid first visor joint being provided with a corresponding plug slice atits bottom end.
 5. A safety helmet visor setting mechanism as in claim 1wherein said first visor joint is provided with a hole at its middleportion, for encircling the shaft of the shaft cover, and through a pushcover for the overall fastening.
 6. A safety helmet visor settingmechanism as in claim 1 wherein said first visor joint is provided witha cave at its top inside, and the cave being provided with a bar at itstop inside, to form the entrance of the cave.
 7. A safety helmet visorsetting mechanism as in claim 1 wherein said second visor joint isprovided with a springy slice which forms an accommodation space betweensaid first visor joint and said shell.
 8. A safety helmet visor settingmechanism as in claim 7 wherein the accommodation space between saidsecond visor joint and said shell is provided with a cave.
 9. A safetyhelmet visor setting mechanism as in claim 1 wherein the clasp slice atone end of said visor is provided with a protruded bar at its outside.10. A safety helmet visor setting mechanism as in claim 1 wherein theclasp slice at the other end of said visor is provided with a bulge atits outside.
 11. A safety helmet visor setting mechanism, comprising:a.) a first visor joint, positioned inside the shell, having an indent;b.) a second visor joint, positioned inside the shell in the other side,having a springy slice, which forms an accommodation space in betweensaid second visor joint and the shell; and c.) a visor, having a claspslice at each of two sides, which penetrates the caves and theaccommodation spaces of said first visor joint and said second visorjoint for accomplishing the assembly, and prompt in the assembly ordisassembly;
 12. A safety helmet visor setting mechanism as in claim 11wherein the top end of the cave of said first visor joint is providedwith a bar at its inside.
 13. A safety helmet visor setting mechanism asin claim 11 wherein the accommodation space between said second visorjoint and the shell is provided with a cave.
 14. A safety helmet visorsetting mechanism as in claim 11 wherein the clasp slice at one end ofsaid visor is provided with a protruded bar at its outside.
 15. A safetyhelmet visor setting mechanism as in claim 11 wherein the clasp slice atthe other end of said visor is provided with a bulge at its outside.